Scilab Function
Last update : 12/1/2004

imult - multiplication by i the imaginary unitary

### Calling Sequence

  `y=imult(x)`

### Parameters

- `x`: real or complex scalar, vector or matrix
- `y`: complex scalar, vector or matrix

### Description

`imult(x)` is a more efficient way to multiply x by i than y = %i*x, without the problems occuring when x comprises "special" floating point numbers as %inf and %nan.

### Examples

    z1 = imult(%inf)
    z2 = %i * %inf

### Author

B.P.;